Ok, yeah, time to get on track, I basically just painted a big 'DOOOO WEEEEE OOOOO' over this topic in 'Tardis Blue' paint. I'll never apologise for Doctor Who though. XD
Christmas Tree Cacti? Meh, there's been weirder plants out there. But then we've already had a tree focus so as much as Kaktus would be fun, lower odds than usual due to Aigwon Noel. I would type 'shakes fist' but Aigwon Noel is alright ^^
I remember some people have suggested a GraksmxxT Noel since he sorta has a three-dimensional Christmas tree shape in his final level form. Have Vanoxymore draw him painted green with decorations on him and it would be funny.